/Engine/Plugins/Animation/IKRig/Source/IKRig/Public/Retargeter/IKRetargetProcessor.h
Returns name of the chain associated with this bone. Returns NAME_None if bone is not in a chain.
[FName](API\Runtime\Core\UObject\FName) GetChainNameForBone ( const int32 & BoneIndex, const int8 & SkeletonToCheck ) const